Development of an inexpensive pneumatic pipefeeder
By: Burnett Engineering.
Contributors: United States. Bureau of Mines.
Series: Mining research contract report; [Open file report -- 13-91]; Open file report (United States. Bureau of Mines) -- 91-13.
Publisher: Bureau of Mines, U.S. Dept. of the Interior
Published: 1990
Place of publication: [Washington, D.C.?]
Language: eng
Format: Microform
Subjects: Mine filling -- Equipment and supplies -- Design and construction.; Pneumatic machinery -- Design and construction.
Notes: Distributed to depository libraries in microfiche.

Shipping list no.: 94-0320-M.

Microfiche. [Washington, D.C.] : Supt. of Docs., U.S. G.P.O., [1994] 1 microfiche.